Chock



A. A. BUREAU Jan. 20, 1931.

CHOCK Filed Oct. 22, 1926 Patented Jan. 20, 1931 p j l 1,7%9,458fl i omen 5m mince;

ereon ALFRED BUREiAU, or 'cHicAGo,

TRIO COMPANY, incoaroim'rirn, For new YORK,

VYORK l Applica tionfi led October 22, f1e2 e. s eria1 Noi l4i ii,3 42.i

This invention relates to chocks for limit- 7 ing the movement of objects during their of a rchockfor gradually overcoming the transportation, and more particularly to stay blocks especiallyadapted for securing cable reels and similarly shaped articles in the cars in which they are transported; V I

An ob ect of the invention is to provide a chock which is light in weight but which is rigid to effectively prevent d1ssufficiently placement of the supported object. v

- The invention. contemplates the provision force ofan impact, thereby greatly increasingits effectiveness. In accordance with one embodiment, the invention contemplates the provision of a chock whose supporting face comprises several sections disposed at progressively increasing angles to gradually overcomethe force tending to displace the supported object. 7 f

It is believedthat a better understanding of the invention may be had by reference to the following description, taken in conjunction with the accompanying drawing, in which Fig. l is aside elevation of the chock; Fig. 2 is a plan view of the device illustrated in Fig. 1, and I Fig. 3 is a perspective view showing the chock supporting a cablereel.

Referring to the drawing in which similar reference characters designate the same parts in the several, views, thechock is designated generally by the numeral 6, which rests upon f a base comprising a pair of baseplates 7 and 8 connected by a brace 9. EXlIBIldlIlg upwardly from the base plates 7 and 8 are two arms'll'and 12, respectively, disposed at such an angle to the base'plates as to be substantially perpendicular to the general slope of a supporting surface'13 which is carried by the arms. The supporting surface 13 of the chock comprises two inclined plane sections 14 and 15 and a curved section 16. The supported object which may be a cable reel 21 normally rests on the section 14 with which it makes a line contact, its position being indicated at 22 in Fig.1. -This section is made slightly widerthanthe remaining sections to afford the greatest supporting surface at 'will tend to roll -The object ofthis ILLINOiS, ASSVIGNVOR To ,wres rnitfii niincthe-point where the greatest shock will occur,

N. Y., A coitroitiirioit or itnw thus preventing damage tothe'objecft' sup; ported. Thenpper sections are narrower 1 since the 'object,.supporteth-if jarred outf of the normal position, v'villhave lost most of its momentum before contacting with these surfaces, hence the supporting surface-13rd).

ivided for the obj ectneed not be" oflvery' great width. Section 14 isralso'disposed at such an angle to'thesupported objectthat if a forceful impact is finiparted to:the object it of tearing the chock from -its'- 'fastening"s. This feature is based on the well known prirrc-iple that the force exertedby aimovingob jectis'proporti-onal to'its mass times its acceleration i If, therefore, an object'in mo.- tion were? stopped instantaneously the. force required to stop" it wouldabe infinite. -i*-In practice, a moving object is never, stopped instantaneously. the case of an ordinary chock .Lwhose supporting face. conforms to the contour of the'supported-object, there will be a slight movement of the chock'wliich will tend to: loosenitfroin its fastenings-f The ed of .a plurality of inclined planes and when the supported "object has rolled up the first inclined section 14 its'm-omentumwill.have been greatly decreased and it willltlienc eninclination "is larger than that of .th'esfirst section.v Itwill be seen that due tothe de i I up the-inclined' plane instead .75 chockof'the presentinventioniis con'struct- Y so counter the second inclined section-.15- whose The base plates 7 and 8 are providedjwith angle of 45 degrees to the fioorin planes substantially parallel to the plane of the chock. a m n i 1 Pre en the; screws fromv ibeing, withdrawn in a straight, linev along their length when the chock tends to pivot about the base plate 7 thus lending them a greater securing effect.

'It will be understood that the embodiment of the invention herein described and illustrated is merely a convenientand useful form of the invention'which is capableof' many other modifications without departing from the spirit and scope of the invention.

What i sclaimed is;

1'.'A "device for supporting a-cylindrical object comprising a base, a plurality of plane supporting surfaces with the uppermostof said surfaces normallyout of contactwith V the object arranged at progressively"increas ing angles with the base and means'for-sup I porting saidsurfaces on the base. 7

I 2. A devicefor supporting a cylindrical object comprising a base, a plurality of plane supporting surfaces arranged at progressive ly increasing angleswith the base, a curved surface substantially of the contourof the 1 -make,normally=oni the lowest planesurface,

a line contactpwith the supported objectand havinga progressivelyincreasing"slope, and

supported object, and means for supporting said surfaces on thebase. V v I 3. A device for limiting the rolling moveject comprising a base, a plurality of inclined ment of an objectfcomprisinga base, asupportingsu'rface :ha-vingupper and lower plane surfaces of:suchcoiifiguration as to w means to support said surface on the base.-

4:- A vdevice forlimiting the c-rollingcmove i ment of anobject comprising a base, a supporting surface having a plurality of sections at graduallyincreasing angles with the base, andmeans for supporting the, surface on thebase,

5. A device for supportingan object comprising a;base, a plurality of plane supporting surfaces having difierent widths arranged at progressively increasing angles withthe base; and-( means for supporting said surfaces on the base.

6. A' deYiceforlimiting the rolling movement of anobject, comprising a base, a plura-lityfof plane supporting surfaces, the widest plane supportingsurface at the normal line'of' contact with the object to besupg ported; a1 narrower-plane supporting surface s at a progressively increased angle tothe base,

a curved surface substantially of-the-contour of the object to be limited in movement, and

means for supporting said. surfaces 1 on the base. I

'7. A device for supporting 'a cylindrical 7 object comprising a plane supporting surface normally engaged by the article, a second 7 pline surface disposed at an angle withthe case diflerentfrom that of the other supporting surface and normally out of engagement with thearticleto allow some movement of 'the artic1e, and means forjpsupporti Said surfaces on the base; r i i v A device for checking a-cyliii-drical 010- izo ii-o 

